Home / 1,428,047.55-2,140,727.09-480,756.51

Finding the Fourth Proportional to 1,428,047.55, 2,140,727.09 and 480,756.51

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Solution

The fourth proportional to 1,428,047.55, 2,140,727.09 and 480,756.51 is: 720,682.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,047.55 : 2,140,727.09 = 480,756.51 : x
  2. Step 2: Convert to fraction form
    1,428,047.55/2,140,727.09 = 480,756.51/x
  3. Step 3: Cross multiply
    1,428,047.55x = 2,140,727.09 × 480,756.51
  4. Step 4: Simplify right side
    1,428,047.55x = 1,029,168,482,247.07
  5. Step 5: Solve for x
    x = 1,029,168,482,247.07/1,428,047.55
  6. Step 6: Final answer
    x = 720,682.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.